A snail-killing fly, Dominimyza tanyacaena n. gen., n. sp. (Diptera: Sciomyzidae) in Dominican amber

摘要

A new genus and species of snail-killing flies, Dominimyza tanyacaena n. gen., n. sp. (Diptera: Sciomyzidae), is described from Dominican amber. Diagnostic characters for Dominimyza include a propleuron with a strong bristle, an elongate porrect flagellum with a long, finely pubescent arista, divergent ocellar, post-ocellar and outer vertical bristles, convergent inner vertical bristles, two pairs of fronto-orbital bristles, scutellum with two pairs of marginal scutellar bristles, vallar bristles present, a strong bristle present near the middle of the anterior face of the mid-femora, a clear wing with fuscous areas, A_1 fading as it nears the wing margin, R_1 extending apicad of the anterior crossvein and the absence of pre-apical bristles on the fore tibia. This is the first description of a snail-killing fly in Dominican amber.